Inclusive results for electron and photon scattering in the resonance region

TL;DR

This paper develops a comprehensive model for electron and photon scattering in the resonance region, incorporating in-medium effects and updated form factors, achieving good agreement with experimental data on Oxygen and Carbon.

Contribution

The paper introduces a novel model that combines in-medium kinematics with recent form factors to accurately describe electron and photon scattering in nuclei.

Findings

Good agreement with electron scattering data on Oxygen.

Significant impact of mean-field effects on photon absorption in Carbon.

Enhanced understanding of resonance region interactions.

Abstract

We present a model for electron scattering off nuclei and photon absorption in the resonance energy region (W <= 2 GeV). The elementary gamma/gamma* N-vertex is described using in-medium kinematics and up-to-date form factors for QE-scattering, pion-production form-factors and resonance helicity amplitudes of the MAID analysis. We find good agreement with inclusive data on electron scattering off Oxygen. For photon absorption in Carbon we find a large impact of the momentum dependent mean-field acting on initial- and final-state baryons.